Study on extraction methods of flavonoids from hawthorn fruits and their determination
Objective To study the extraction methods of flavonoids from hawthorn fruits. Methods Using different methods to extract flavonoids from hawthorn fruits.Results The highest extract rate(2.00%) was got through the method of continuous distillation,then seperating different parts by adsorbent resin. Comparatively high extract rate (1.96%) was got through the method of 60% ethanol ultrasonic extract, then seperating different parts by adsorbent resin. Conclusion 60% ethanol ultrasonic extract then seperating different parts by adsorbent resin is a good method to get flavonoids from hawthorn fruits.